Size determination of the Centaur Chariklo from millimeter-wavelength bolometer observations
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Corresponding author: W. J. Altenhoff, firstname.lastname@example.org
Accepted: 15 December 2000
Using the Max-Planck Millimeter Bolometer Array (MAMBO) at the IRAM 30 m telescope we detected emission at 250 GHz from the Centaur Chariklo (1997 CU26). The observed continuum flux density implies a photometric diameter of 273 km. The resulting geometric albedo is 0.055, somewhat higher than expected from a comparison with most of the other few Centaurs and cometary nuclei for which such data are available.
Key words: comets: general / minor planets, asteroids / radio continuum: solar system
© ESO, 2001